Who Has Time to Read and Analyze Submeter Energy Data?
The cost savings benefits of interval data for main utility meters and submeters for specific loads (e.g. lighting, refrigeration), work areas (e.g. welding), or equipment (e.g. electric furnace) are well understood by energy and facility managers. Energy data from utility bills are “rear view mirror” snapshots of energy use and typically received 30 to 60 days after use. Interval data provides operators a view of what is happening now and thus affords an opportunity to make changes that optimize energy usage. But with submeter generating lots of interval data (typically every 15 minutes), who has time to review and analyze all this data?
The primary function of the typically thinly-staffed energy and facility teams is operational reliability (keeping the line running or building operating) and maintenance (break-fix). It takes time to normalize the submeter data for weather, occupancy, production levels and other factors to identify true energy use anomalies (miscalibrated equipment, equipment needless running, etc.). This is time these teams often do not have.
Read the full blog post by Paul Baier.